Fig. 4From: Design and adjustment of the graphene work function via size, modification, defects, and doping: a first-principle theory studyThe relationship between the WF and the number of doping atoms. The relationship between the WF and the number of doping atoms. Different types of dopants, e.g., Al, B, P, N, and Si, are doped in the graphene with the size of 4 × 4 cellsBack to article page